rl!
~
11
1·
I
I
l~i
11
I
1
11
,,
~
I
I
!I
•l
!I
~
I
(20)
Adjusting
the throat plate support .............................................................................
34
(21)
Adjusting
the
feed mechanism
cover
presser .......................................................... 34
(22)
Adjusting
the
looper
cover
.........................................................................................
36
(23)
Adjusting
the
cloth
chip
cover
................................................................................... 36
(24)
Adjusting
the needle mechanism ............................................................................... 38
(25}
Position
of
the
upper
looper
lubrication
pin
.............................................................
40
1)
Orientation
of
the lubricating pin ............................................................................................................. 40
2)
Setting the lubricating pin ....................................................................................................................... 40
(26)
Longitudinal
momentum
of
the
top
feed
dog
(Top feed amount) ...........................
42
(27) Vertical
momentum
of
the
top
feed
dog
.................................................................... 44
(28)
Adjusting
the
height
of
the
top
feed
dog
................................................................... 46
(29)
Locus
cut
of
the
top
feed
dog
.................................................................................... 48
(30)
Adjusting
the
longitudinal
position
of
the
top
feed
dog
.......................................... 48
(31)
Adjusting
the lateral
position
of
the
top
feed
dog
.................................................... 50
(32)
Position
of
the
motion
of
the
top
feed
dog
...............................................................
52
(33)
Adjusting
the feed
bar
guides
A and B .................................................................
~
.•..
54
(34)
Adjusting
the
top
feed
dog
pressure .........................................................................
56
(35)
Lifting
amount
of
the
top
feed
dog
(when operating
the
pedal) ••....••..••..••.......•..••.•
56
(36)
Height
of
the presser (pedal operation) ..................................................................... 58
(37}
Lifting
amount
of
the
top
feed dog (when
the
presser
lifting
lever
is
operated)
.••
60
(38) Position
of
the
thread
guides
and
the
looper
thread
take-ups ................................ 62
(39)
Adjusting
soft
chain making mechanism .................................................................. 64
1)
Replacing· the parts with those exclusively designed
for
making soft chains ......................................... 64
2)
Adjustment value .................................................................................................................................... 64 -
3} Important points
in
adjustment ............................................................................................................... 65
(40) Position
of
the
thread
guides
and
the
looper
thread take-ups
of
MO-6900G (J) ... 66
4. ADDITIONAL INFORMATION AND PRECAUTIONS ..................................... 68
(1) Thread
tension
............................................................................................................... 68
1)
Strength of tension spring ....................................................................................................................... 68
2)
Springs used
for
each model. ................................................................................................................. 68
(2) Upper looper· .................................................................................................................. 69
(3) Center-to-center distance
of
the
upper
looper
holder
............................................... 69
(4) Caution
in
assembly
...................................................................................................... 69
1) Application
of
sealant .............................................................................................................................
69
2) Precautions to
be
taken with respect to the lubricating components ...............................................
~
......
71
(5) Kinds
of
motor
pulleys,
belts
and frame
support
plate
bolts
.................................... 72
1)
Motor pulleys
and
belts ........................................................................................................................... 72
2)
Pat
No.
of
frame support plate bolt ......................................................................................................... 73
(6)
Inspection
and replacement
of
the
cartridge
filter
..................................................... 73
5. ADJUSTMENT
OF
THE NEEDLE HEIGHT AND LOOPER TIMMI NG ........... 7 4
(1) MO-60006. SERIES ........................................................................................................
74
6. TROUBLES AND CORRECTIVE MEASURES ............................................... 75
7. DIMENSIONS
OF
TABLE
••...••.••..••••....•.•..•.•.••••.•..•••.•..••••..••.••••••..•••.•••.••..••.•..
87
(1) Semi-sunken
type
..........................................................................................................
87
(2) Fully-suken
type
.................. u
........................................................................................
88
From the Library of Superior Sewing Machine & Supply LLC
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